it went from 90% of the mobile code being committeed to now 90 coming from the -- all the code ebing writeen is mobile. >> do you still code? >> we have a role at facebook that if you check your code, you have to stay with it. i do not check in code to the main branch anymore. [applause] >> do mark zuckerberg's code break? >> yes. everything i do brakes but we fix it quickly. >> you closed the instagram acquisition. why and what are you going to do with it? >> instagram is great. they are this super accounting group of engineers. they are building this amazing product. they are killing it. the history of how this thing came together is really interesting. the way i got to know that and -- kevin is they started off atform.g on top of our pl it is really first class. sharing a picture from instagram appears the same as if he shared a photo on facebook. one of the things i like to do, i'd like to know our developer is personally and what to get to know the people doing great stuff on top of our platform. i spent a lot of time with kevin. over the course of our discussions, we build a road map o